MAX17521

• Operates from a 7V to 60V Input Supply
• Dual-Output Voltage: 3.3V and 5V
• Up to 1A Output Current
• Pin-Selectable Switching Frequency
• Enable/UVLO Input, Resistor-Programmable UVLO Threshold
• Mode-Selection Pin for Each Output to Select Between PWM and PFM Modes
• Adjustable Soft-Start Time for Each Output
• Open-Drain Active-Low RESET_ Signals for Each Output
• External Frequency Synchronization
• Overcurrent and Overtemperature Protection
• Proven PCB Layout
• Fully Assembled and Tested

The MAX17521 evaluation kit (EV kit) provides a proven design to evaluate the MAX17521 dual high-efficiency, high-voltage, synchronous step-down DC-DC converter. The EV kit generates 3.3V and 5V output voltages at load currents up to 1A from a 7V to 60V input supply. The EV kit features a switching-frequency selector pin and individual mode-of-operation selector pins, enable/under-voltage-lockout (EN/UVLO) pins, programmable soft-start pins, and open-drain active-low RESET_ signals for each output.

Applications

• CPU, DSP, or FPGA Power
• Distributed Supply Regulation
• General-Purpose Point of Load
• Industrial Control Power Supplies

• Operates from a 7V to 60V Input Supply
• Dual-Output Voltage: 5V and 3.3V
• Up to 1A Output Current per Converter
• 560kHz Switching Frequency
• EN/UVLO Input, Resistor-Programmable UVLO Threshold
• Mode Selection Jumper to Select Between PWM and PFM Modes
• Capacitor Programmable Soft-Start Time
• External Clock Synchronization Input
• Open-Drain Active-Low RESET Output
• Overcurrent Protection
• Overtemperature Protection
• Proven PCB Layout
• Fully Assembled and Tested
• Complies with CISPR32(EN55032) Class B Conducted and Radiated Emissions

The MAX17521EVKITE# evaluation kit (EV kit) provides a proven design to evaluate the MAX17521 high-efficiency, high-voltage, Himalaya synchronous step-down dual DC-DC converter. The EV kit is preset to generate 5V and 3.3V output voltages, at load currents up to 1A per converter. The switching frequency of the EV kit is preset to 560kHz for optimum efficiency and component size. The EV kit features programmable enable and input undervoltage lockout (EN/UVLO), programmable soft-start (SS), open-drain status (active-low RESET) output and external clock synchronization (SYNC). The EV kit also provides good layout example, which is optimized for conducted, radiated EMI, and thermal performance. For more details about the IC Benefits and Features, refer to the MAX17521 IC data sheet.

Applications

• CPU, DSP, or FPGA Power
• Distributed Supply Regulation
• General-Purpose Point of Load
• Industrial Control Power Supplies